According to this Spanish report, the Spurs are offering the Argentinian player Carlos Delfino a two year contract. Delfino spent last season as a role player with the Raptors, averaging 9 points, 4.5 rebounds and 2 assists per contest.

Delfino's Agent says that the Magic and Cavaliers have also shown interest in Delfino and they are currently exploring their options. They seem to be looking for a three year deal.

The article says the Spurs are offering Delfino a two years contract.
They're deciding as Delfino's agent says that the Cavs, Magic and Khimky of Russia are also interested.
Agent mentions that they are more interested in a 3 year deal.